<?php

    /**
	 * Elgg groups plugin edit topic action.
	 * 
	 * @package ElggGroups
	 * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
	 * @author Curverider
	 * @copyright Curverider Ltd 2008
	 * @link http://elgg.com/
	 */

    // Make sure we're logged in (send us to the front page if not)
		if (!isloggedin()) forward();
		
	// Check the user is a group member
	    $group_entity =  get_entity(get_input('group_guid'));
	    if (!$group_entity->isMember($vars['user'])) forward();
     

	// Get input data
	    $title = get_input('topictitle');
		$message = get_input('topicmessage');
		$message_id = get_input('message_id');
		$tags = get_input('topictags');
		$topic_guid = get_input('topic');
		$access = get_input('access_id');
		$group_guid = get_input('group_guid');
		$user = $_SESSION['user']->getGUID(); // you need to be logged in to comment on a group forum
		$status = get_input('status'); // sticky, resolved, closed
		
	// Convert string of tags into a preformatted array
		 $tagarray = string_to_tag_array($tags);
		
	// Make sure we actually have permission to edit
		$topic = get_entity($topic_guid);
		
		if ($topic->getSubtype() == "groupforumtopic") {
	
		// Convert string of tags into a preformatted array
			$tagarray = string_to_tag_array($tags);
			
		// Make sure the title isn't blank
			if (empty($title) || empty($message)) {
				register_error(elgg_echo("groupstopic:blank"));
		
		// Otherwise, save the forum
			} else {
				
		        $topic->access_id = $access;
				
		// Set its title
				$topic->title = $title;
				
		// if no tags are present, clear existing ones
				if (is_array($tagarray)) {
					$topic->tags = $tagarray;
				} else $topic->clearMetadata('tags');
				
		// edit metadata
		       $topic->status = $status; // the current status i.e sticky, closed, resolved
		       
        // now let's edit the message annotation
			   update_annotation($message_id, "group_topic_post", $message, "",$user, $access);
		       
		// save the changes
            if (!$topic->save()) {
			//		register_error(elgg_echo("forumtopic:error"));
			}
			
           // Success message
				system_message(elgg_echo("forumtopic:edited"));
				
		    }
        }
		
		// Forward to the group forum page
	        global $CONFIG;
	        $url = $CONFIG->wwwroot . "pg/groups/forum/{$group_guid}/";
			forward($url);
		
?>

